/* =========================
   Lbee Développement - Pages projet
   Breakpoint principal : 900px
   ========================= */

:root {
  --color-bg: #f3eef8;
  --color-surface: #ffffff;
  --color-text: #141020;
  --color-text-soft: #4d465c;
  --color-border: #dfd2f7;

  --color-accent: #8b3dff;
  --color-accent-2: #6f35ef;
  --color-accent-text: #ffffff;

  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --container-max: 1200px;
  --container-padding: 24px;

  --font-title: "Sora", system-ui, sans-serif;
  --font-body: "Onest", system-ui, sans-serif;

  --header-height-mobile: 76px;
  --header-height-desktop: 80px;

  --transition-fast: 160ms ease;
  --transition-base: 240ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  display: block;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, p, ul {
  margin: 0;
}

.container {
  width: min(100%, calc(var(--container-max) + (var(--container-padding) * 2)));
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.skip-link,
.sr-only {
  position: absolute;
}

.skip-link {
  top: -100px;
  left: 12px;
  z-index: 9999;
  background: var(--color-text);
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 12px;
}

.sr-only {
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(243, 238, 248, 0.6);
  backdrop-filter: blur(40px);
}

.header-inner {
  min-height: var(--header-height-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-family: var(--font-body);
  font-size: 1.95rem;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1;
  white-space: nowrap;
}

.site-nav {
  display: none;
}

.nav-list {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-list a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-soft);
  transition: color var(--transition-fast);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--color-text);
}

.nav-toggle {
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  border-radius: 10px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle:focus-visible {
  outline: 3px solid rgba(139, 61, 255, 0.25);
  outline-offset: 2px;
}

.nav-toggle__line {
  width: 100%;
  height: 2.5px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-header.is-menu-open .nav-toggle__line:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.site-header.is-menu-open .nav-toggle__line:nth-child(2) {
  opacity: 0;
}
.site-header.is-menu-open .nav-toggle__line:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

.mobile-menu {
  border-top: 1px solid var(--color-border);
  background: rgba(243, 238, 248, 0.98);
}

.mobile-nav {
  padding-top: 10px;
  padding-bottom: 16px;
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 6px;
}

.mobile-nav-list a {
  display: block;
  padding: 14px 8px;
  border-radius: 12px;
  font-weight: 600;
  color: var(--color-text);
}

.mobile-nav-list a:hover,
.mobile-nav-list a:focus-visible {
  background: rgba(139, 61, 255, 0.06);
  outline: none;
}

/* Main layout */
.project-page {
  min-height: 100dvh;
}

.project-hero {
  padding-top: 34px;
  padding-bottom: 36px;
}

.project-hero__title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 800;
  max-width: 980px;
  margin-bottom: 18px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  color: #9a7ed6;
  background: rgba(255, 255, 255, 0.35);
  font-size: 0.85rem;
  font-weight: 500;
}

.project-content {
  padding-top: 36px;
  padding-bottom: 84px;
  background: #f7f5fa;
}

.project-sections {
  max-width: 860px;
  margin-inline: auto;
  display: grid;
  gap: 46px;
}

.project-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.project-section__title {
  font-family: var(--font-title);
  font-size: clamp(1.6rem, 3vw, 2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.project-section__text {
  color: var(--color-text);
  max-width: 620px;
  line-height: 1.38;
  font-size: 0.98rem;
}

.project-section__text p + p {
  margin-top: 10px;
}

.site-footer {
  padding-block: 22px 28px;
}

.site-footer__inner {
  display: flex;
  justify-content: center;
  text-align: center;
}

.site-footer small {
  color: var(--color-text);
  font-size: 0.88rem;
}

/* Desktop */
@media (min-width: 900px) {
  .header-inner {
    min-height: var(--header-height-desktop);
    gap: 32px;
  }

  .brand {
    font-size: 2rem;
  }

  .site-nav {
    display: block;
    margin-left: auto;
  }

  .nav-toggle,
  .mobile-menu {
    display: none;
  }

  .project-hero {
    padding-top: 48px;
    padding-bottom: 46px;
  }

  .project-hero__title {
    font-size: clamp(2.4rem, 4.2vw, 4rem);
    max-width: 1080px;
    margin-bottom: 20px;
  }

  .project-content {
    padding-top: 56px;
    padding-bottom: 110px;
  }

  .project-sections {
    max-width: 900px;
    gap: 62px;
  }

  .project-section {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .project-section__title {
    font-size: 1.95rem;
  }

  .project-section__text {
    max-width: 520px;
    font-size: 0.95rem;
    line-height: 1.35;
    padding-top: 4px;
  }

  .site-footer small {
    font-size: 0.8rem;
  }
}

/* Mobile/tablette < 900px */
@media (max-width: 899.98px) {
  .project-hero__title {
    font-size: clamp(2rem, 9vw, 3rem);
  }

  .project-section__text {
    max-width: 100%;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}